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| Criterion |  Architecture C4 Model |  UX Research Usability Testing |  UX Research First-click Testing |
|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. |
Complexitydifferent | Low | Medium | Low |
Timedifferent | 1-4 h | 1-2 h je Session | 1-2 Tage |
Participantsdifferent | 1-5 | Based on research question | 10-30 |
Formatdifferent | Workshop + async | Workshop + async | Async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Usability Issues, Severity List, Recommendations | Click Heatmap, Success Rate, Design Recommendations |
Tagsno overlap | ArchitectureCommunicationVisualization | ValidationUXPrototype | UXNavigationFindabilityValidation |
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